Goodwill and Intangible Assets Goodwill (Details) $ in Thousands	9 Months Ended
Jun. 30, 2026 USD ($)
Goodwill [Line Items]
Goodwill	$ 107,830
Goodwill	129,577
Goodwill, Acquired During Period	21,747
Commercial and Industrial [Member]
Goodwill [Line Items]
Goodwill	0
Goodwill	0
Goodwill, Acquired During Period	0
Residential [Member]
Goodwill [Line Items]
Goodwill	51,370
Goodwill	51,370
Goodwill, Acquired During Period	0
Infrastructure Solutions [Member]
Goodwill [Line Items]
Goodwill	44,124
Goodwill	65,871
Goodwill, Acquired During Period	21,747
Communications [Member]
Goodwill [Line Items]
Goodwill	12,336
Goodwill	12,336
Goodwill, Acquired During Period	$ 0

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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